HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   StaticFile
Error Code   0x00000000
Requested URL   http://ambulatorioportalucchese.com:80/%E3%83%87%E3%83%83%E3%83%89%E3%83%AD%E3%83%83%E3%82%AF%E6%B5%9C%E8%BE%BA%E5%8A%A0%E5%85%A5/%E9%8C%AB%E8%99%9A%E5%81%BD%E5%9B%B3/18.html
Physical Path   D:\inetpub\webs\ambulatorioportalucchesecom\%E3%83%87%E3%83%83%E3%83%89%E3%83%AD%E3%83%83%E3%82%AF%E6%B5%9C%E8%BE%BA%E5%8A%A0%E5%85%A5\%E9%8C%AB%E8%99%9A%E5%81%BD%E5%9B%B3\18.html
Logon Method   Not yet determined
Logon User   Not yet determined
Request Tracing Directory   D:\LogFiles\FailedReqLogFiles

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

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